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Verbena bonariensis



  • Common Name: Purple top, Argentinian vervain, South American vervain, Tall verbena
  • Synonyms: Verbena bonariensis 'Buenos Aires', Verbena brasiliensis misapplied, Verbena patagonica
  • Position: Full sun, South-facing, West-facing, Exposed, Sheltered
  • Soil: Moist but well-drained, Well-drained, Chalk, Clay, Loam, Sand, Acid, Alkaline, Neutral
  • Flowers: Summer, Autumn
  • Flower Colour: Purple
  • Hardiness: H4 - Hardy through most of the UK
  • Habit: Deciduous, Columnar, Upright
  • Height & Spread: 200cm × 45cm
Perennial verbena, whose clouds of vivid purple flowers are borne freely on tall, branching stems from midsummer to autumn.  Ideal for mixed and herbaceous borders, and excellent for cutting.

Ensure the root ball is thoroughly moist when planting and at the same level in the soil as it was in the container.  Refill the planting hole with soil mixed with some compost and a sprinkling of bone meal.  Firm well and water in.  Protect from sharp frosts with a dry winter mulch.

Verbena bonariensis RHS Award of Garden Merit RHS Perfect for Pollinators